Treacy, D. (1993). Successful time management in a week. Hodder & Stoughton.
Lua i Stíl Chicago (17ú heag.)Treacy, Declan. Successful Time Management in a Week. London: Hodder & Stoughton, 1993.
Lua MLA (8ú heag.)Treacy, Declan. Successful Time Management in a Week. Hodder & Stoughton, 1993.
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